Home / 87,068.88-120,182.40-49,368.24

Finding the Fourth Proportional to 87,068.88, 120,182.40 and 49,368.24

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Solution

The fourth proportional to 87,068.88, 120,182.40 and 49,368.24 is: 68,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,068.88 : 120,182.40 = 49,368.24 : x
  2. Step 2: Convert to fraction form
    87,068.88/120,182.40 = 49,368.24/x
  3. Step 3: Cross multiply
    87,068.88x = 120,182.40 × 49,368.24
  4. Step 4: Simplify right side
    87,068.88x = 5,933,193,566.98
  5. Step 5: Solve for x
    x = 5,933,193,566.98/87,068.88
  6. Step 6: Final answer
    x = 68,143.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.